Speaker Polarity for Android

Moved into new house with speakers built in everywhere to the ceilings and walls. No idea how the wires are connected, and i’m not about to go around removing each speaker from the wall and ceiling to see how they are attached (i tried one one, but they are very difficult to remove). I needed to know the correct polarity so that I could correctly calculate the impedance of various series and parallel circuits of speakers with the amp so i didn’t overload it (in addition to them having optimal sound). The builders of my house did not seem to follow any sort of convention or pattern when installing the speakers and connecting the wires, unfortunately. Using the app I was able to see that approximately 25% of my speakers were wired backwards and I simply matched this backwards wiring on my wall plate to ensure that I have the correct polarity everywhere. This app save me hours and hours and hours of difficult work and I will be forever grateful!!!

I ran the WAV click file from their website through my stereo (using my Mobile), then held my phone in front of each speaker to check polarity. 3 out of 4 of my speakers were negative, so I reversed the wires on those. Very quick and easy.

Save your money !!!

Installed new speakers, head unit, and amplifier in my project truck. When using the factory wiring to connect to aftermarket speakers, it’s challenging to know the correct wiring schematic, even with a harness. After install I wanted to see if I did the wiring correctly... nope all speakers out of phase. This app gives a simple “-“ or “+” based on the phase of your speakers. I would have given 5 stars, but this app must of been created in an hour. It’s very poor with little to no instructions. What I did. Visit the app designers website on a Windows or OS computer and download their “Speaker Pop” audio file. From there I added the “long pop.wav” file into iTunes. I used my Mobile as the music source (plugged in my Mobile to the usb of my stereo), then used the app on my Android to read the sound from the speakers. The app used the microphone on your Android to read the signal. The microphone is located where the charger is (bottom of Android). Make the wire swap at the speaker, behind the head unit, or amp (my case, the amp under my seat) then test again. The test is only good for mid-speakers (door speakers), not tweeters (locates usually in the A-pillar or dash).

Just built a new audio system in my car and I was struggling with some weird polarity issues coming from the OEM head unit. I downloaded and burned the WAV file to CD and played it on repeat. And then one by one I could test each speaker simply by hold my phone near it. Brilliant!